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外文翻译--浅谈我国混凝土简支梁桥施工技术与发展.doc

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外文翻译--浅谈我国混凝土简支梁桥施工技术与发展.doc

专业文献翻译题目TALKINGABOUTCHINASCONCRETESIMPLEBRIDGECONSTRUCTIONTECHNOLOGYANDDEVELOPMENT系建筑工程学院专业土木工程班级学生姓名导师姓名完成日期TALKINGABOUTCHINASCONCRETESIMPLEBRIDGECONSTRUCTIONTECHNOLOGYANDDEVELOPMENTWITHTHEADVANCESINTECHNOLOGY,THEORIGINALCONCRETESIMPLEBRIDGEHASBEENTHEMETHODOFCLASSIFICATIONDOESNOTREFLECTADVANCESINTECHNOLOGY,FORTHESAKEOFITMAYWISHTOSUPPORTINSITUINTOLAW,THEENTIREHOLEANDTHEERECTIONOFMOBILEDIELAWCATEGORYTHISPAPERONTHECONCRETESIMPLEBRIDGEOFTHECONSTRUCTIONMETHODATTHEINTRODUCTIONANDCONCLUSION,THECONSTRUCTIONPROGRAMMEWITHAVIEWTOTHEFORMULATIONANDIMPLEMENTATIONOFTHEGUIDINGROLE1STENTINSITULAWSTENTINSITUMEANSTHATTHELAWUNDERTHEBEAMERECTIONSTENTTOSUPPORTTHETEMPLATEOFREINFORCEDCONCRETEPOURINGANDOTHERWORKINGLOAD,THELASTBRIDGEWITHTHECONSTRUCTIONMETHODALTHOUGHTHESTENTISATEMPORARYSTRUCTURECONSTRUCTION,BUTITAFFECTSBODYMASSANDBEAMCONSTRUCTIONSAFETY,MUSTBETAKENSERIOUSLYGENERALSHOULDNOTETHEFOLLOWINGISSUES1SUFFICIENTSTRENGTH,RIGIDITYANDSTABILITYSUPPORTMUSTBERELIABLYWITHSTANDTHECONSTRUCTIONPROCESSMAYHAVEINTHEVARIOUSLOADS,ANDTHELOADTYPEANDSIZEOFTHEESTIMATEISTHEKEY,ACCORDINGTOCONSTRUCTIONSPECIFICATIONSANDCONSTRUCTIONEXPERIENCETOBECONFIRMED;STENTTOBEBASEDONRELIABLE,BASEDONTHERESULTSOFTHESTENT,FORTHEMOSTADVERSECONDITIONSONTHEBASISOFDESIGN,ANDTHEFOUNDATIONTOCARRYOUTTHENECESSARYTREATMENT;TEMPORARYSTRUCTUREINTHECOMPONENTCONNECTIONISTOENSURETHATTHEKEYTOOVERALLSTABILITY,WEMUSTENSURETHATTHECONNECTIONPOINTOFSECURITY,ANDHAVEENOUGHVERTICAL,HORIZONTAL,RAMPSCONNECTINGRODPIECESANDPREVENTTHEEMERGENCEOFTHEOVERALLFAILUREORPARTIALFAILUREGENERALLYSPEAKING,THESTRENGTHOFSUPPORTMOREEASILYBEGUARANTEED,BUTWITHTHESTABILITYOFTENOVERLOOKEDTHEREASONISTHATTHESTRUCTUREOFTHESTABILITYOFTHEMOREDIFFICULTTOCALCULATE,BUTWITHTHEEMERGENCEOFLARGESCALECOMMERCIALSOFTWARE,THEPROBLEMWASGRADUALLYRESOLVEDMOREIMPORTANTFORTHESTENT,WHENTHEREISNOABSOLUTEGRASPONSTABILITY,SIMULATIONANALYSISSHOULDBECONDUCTED2DETERMINETHEELEVATIONMODELLEGISLATIONMOSTBRIDGESHAVEADESIGNINTHEPRECAMBERCHANGSAIDTHEDESIGNOFPREARCH,ANDWILLSUPPORTAVARIETYOFLOADSINTHEROLEOFDEFORMATIONANDTHEREFOREHAVETOCONSIDERTHEIMPACTTHATTHESTENTDEFORMATIONOXFAMTHEPRECAMBERDURINGTHECONSTRUCTION,MUSTBECALCULATEDPRECONSTRUCTIONANDDESIGNOFTHEARCHARCH,TODETERMINETHECORRECTELEVATIONMODELLEGISLATION,THUSGUARANTEEABRIDGETOMEETTHEDESIGNANDSPECIFICATIONSOFTHELINETOOBTAINAMOREPRECISECONSTRUCTIONPRECAMBER,IFNECESSARY,TOSUPPORTPREPRESSURETESTING,TODETERMINETHESUPPORTOFNONELASTICDEFORMATIONANDELASTICDEFORMATIONVALUES,TOVALIDATECONSTRUCTIONINTHECALCULATIONOFTHEVARIOUSPARAMETERS3DUMPINGEQUIPMENTTOSETUPTHEINSITUSTENTDISPOSALEQUIPMENT,SHOULDBECHARGEDSYMMETRICAL,UNIFORM,THEMAINBEAMTOPREVENTAPARTIALSTRESSTHEPASTWITHEQUIPMENTCOMMONLYUSEDFORDUMPINGSANDWEDGEANDEXTINGUISHERS,ANDJACKNOWUSESTANDARDEQUIPMENTWITHDEDICATEDEQUIPMENTALTHOUGHTHESTRUCTUREDIDNOTSUPPORTTHENUMBEROFCHANGES,BUTTHEEQUIPMENTUSEDBYTHESTENTTHANTHELASTGREATCHANGESHAVETAKENPLACENOWCOMMONLYUSEDSTANDARDEQUIPMENTFIGHTSTENTGROUP,SUCHASSTEELPIPEBOWLBUTTONUPSCAFFOLDING,UNIVERSALMEMBERS,BAILEYBEAM,JUNE4MILITARYBEAM,ENTRYSTEELTRUSSGIRDER,AUGUST7STEELGIRDER,6AUGUST3AND5TUNTUN,ANDSOON,ALLCONSTRUCTIONUNITSACCORDINGTOTHEIRACTUALSITUATIONINWHICHTHEUSEOFONEORMOREOFTHEFIGHTSTENTGROUPUSINGSTANDARDEQUIPMENTGROUPFIGHTSTENT,THECONSTRUCTIONSPEED,HIGHINTENSITYSUPPORT,GOODSTABILITY,ANDAABETTERECONOMICPERFORMANCECONSTRUCTIONOFTHEBRIDGEINTHECITY,THEBRIDGEGENERALLYISNOTHIGH,SOUSEALARGEBOWLBUTTONUPPIPESCAFFOLDING,TOUSEITSADJUSTABLEENTRUSTEDWITHTHEELEVATIONOFADJUSTMENTANDHOLDOFFISVERYCONVENIENTINATRAFFICFLOW,THEUSEOFBEAMSUPPORTANDMILITARYPIERWITHACERTAINCLEARANCESUPPORTCASTINPLACEMETHOD,THEKEYISTOFIGHTSTENTGROUP,SHOULDGIVEFULLCONSIDERATIONTOLOADANDSTRENGTHENSTRUCTURALCONNECTIONS,ADETAILEDANALYSISTOENSURECONSTRUCTIONSAFETYANDQUALITY2ERECTIONOFTHEENTIRELAWWHOLEBUILDINGMETHODISUSEDFACTORYPREFABRICATEDBEAM,BEAMWILLBETRANSPORTEDTOTHEBRIDGESITEANDINSTALLINPLACEOFTHEWAYSUCHMETHODSINTHEERECTIONOFTHEMAINTRUCKCRANE,GANTRYCRANEERECTEDACROSSTHEBRIDGE,BRIDGEBUILDINGSPECIESWHENTHEWATERUNDERNEATHANDRELATIVELYFLAT,LONGSPANBEAMCANBEUSEDFORSMALLTRUCKCRANE,LONGSPANBEAMORTHEBEAMOFAHEAVIERSPANBRIDGECANGANTRYCRANEWHENTHEBRIDGETRAFFICSHOULDNOTBEINTERFERENCE,ORBRIDGEDEEPDITCHINTHEWATER,ANDOTHERCONDITIONSDONOTALLOWTHESCENEWHENITNEEDSATOPTHATIS,ABRIDGEBUILDINGINWHATWAY,SHAPEACCORDINGTOTHESITE,EQUIPMENTANDBEAMWEIGHT,COMPARISON,THEERECTIONOFAMOREECONOMICWAY,THEFOLLOWINGMAJORHIGHWAYBRIDGEANDITSTURNTOTHEDOMESTICBRIDGEASSEMBLEDANDCANBEDIVIDEDINTOSTANDARDTWOMAINBRIDGEASSEMBLEDUSINGSTANDARDEQUIPMENT,TOBEBASEDONSIZEANDWEIGHTBEAMBRIDGEMACHINEASSEMBLEDATTHEMAINBEAMINTRODUCTIONBEAM,CORRESPONDINGTOTHECONFIGURATIONOFLIFTINGUPANDRUNNINGINSTALLATIONS,LEADINGTOERECTIONOFLIANGILIANGUSEDEQUIPMENTFORTHEBAILEYGENERAL,UNIVERSALMEMBERS,MILITARYBEAM,BAILEYGUIDEDSPANBEAMBRIDGEASAPPLICABLEINTHEFOLLOWING30M;UNIVERSALMEMBERSGUIDEDBEAMBRIDGINGAMOREFLEXIBLE,LARGERSCOPEOFAPPLICATIONOFTHESPAN,BUTRODBOLTSFORTHEFIGHTEVENLARGERGROUPWORKLOAD;MILITARYLIANGLIANGBRIDGEGUIDEDGROUPSFIGHTONE,ANDASINGLELAYERORDOUBLEMILITARYFIGHTGROUPILIANGLIANG,ITSAPPLICATIONSPANFANWIDELY,FROM16MTO50MARECAN,LIFTINGCAPACITYCANBEGUIDEDTHROUGHTHEBEAMBYAFEWFILMSMOREEASILYBEGUARANTEED7ASSEMBLEDBRIDGETHESUDDENADVANTAGEOFCONVENIENTTRANSPORTATION,THEGROUPFIGHTSIMPLE,JIANZUOOTHERSTRUCTURALWEAKNESSESSOTHATTHEDEGREEOFMECHANIZATIONISNOTSTANDARDBRIDGEMACHINE,BUTBECAUSEOFTHESINGLEECONOMICGOODWORKSINOURCOUNTRYTOPLAYABRIDGEBUILDINGFOCUSONUSEINTHESTANDARDBRIDGEMACHINE,IN1992DEVELOPEDAJQG80HIGHWAYBRIDGEMACHINE,THENHAVEPRODUCEDASERIESOFBRIDGINGDFEBGSERIESOFBRIDGES,ERECTEDTOBEAMTONNAGE4001600KSPANFORTHEERECTIONOF2050M,BOTHFROMTHESTRUCTURALFORMOFWAYORHAVEDIFFERENTLEVELSOFINNOVATIONTHECURRENTSTANDARDOFTHEBRIDGESTRUCTUREFORMTHEMAINDIFFERENCEISTHATBRIDGINGTHEVERTICALPLANEONTHEWAYMAJORSHIFTWALKERANDVERTICALSHIFTTHECANTILEVERRAILLINESHIFTKINDOFVERTICALLARGESTCANTILEVERRAILLINEVERTICALSHIFTMEANSALOWCENTEROFGRAVITY,LIGHTWEIGHT,CANBUILDASMALLERRADIUSOFTHECURVEBRIDGESMERITS,ITSSHORTCOMINGSARECANTILEVEREDVERTICALAXLELOADLARGERSHIFTINTHECOURSEOFTHEBAREBEAMMAYHAVEBEENCAUSEDHARM,TOBEUSEDTOLOADDISTRIBUTIONMETHODSSUCHASTHEPROTECTIONOFBAREBEAMSANDSTEPVERTICALSHIFTTHEWAYFORCONSTRUCTIONOFBRIDGELOADONLYROLEINABAREBEAMBRIDGEANDTHEFIRSTSTAGE,WITHOUTTHEABOVEPROBLEM;ITSSHORTCOMINGSISTHEWEIGHTOFTHESTRUCTURETHEHIGHCOSTOFERECTINGARADIUSOFTHEBRIDGEISALSOLARGER,THEFOCUSOFSOMEOFTHECURRENTRELATIVELYHIGHSTANDARDOFBRIDGEINTHEMOREADVANCEDSINGLEDJISGUIDEDBEAMBRIDGEMACHINE8,CANBEUSEDTOBUILDSPANOFNOTMORETHAN50MOFSIMPLEBEAMCANBEERECTEDSTRAIGHTBRIDGE,XIEQIAO,CURVEDBRIDGE,PORTABILITYEDGEBEAMTELOPINGFIRSTPLACE,TOACHIEVEFULLFACEBEAMSHIFTMECHANIZATIONTHEAIRCRAFTIN2002THROUGHTHEIDENTIFICATIONOFNEWPRODUCTS,OURROADSANDBRIDGESINTHEHISTORYOFTHEDEVELOPMENTOFANINITIATIVETHEAIRCRAFTUSEDFORSINGLEARMFASTINGBOXGIRDERMASTEROFTHECOMPONENTSWITHTWOLIGHTTHEMSELVES;TELESCOPICARMUSEDFORSAFEANDRELIABLEGUIDETHROUGHHOLEUSEDTORACKGEARTRANSMISSIONWITHTWOSELFLOCKINGOFTHEGOODUSEOFHYDRAULICMOTORDRIVENROLLER,BRAKERELIABLECONTROLSYSTEMUSESHITACHIPLCCONTROL,INTERLOCKINGOFGOODWILLFROMTOPTOBOTTOMARMMOVEMENTS,BEFOREANDAFTERSTRETCHING,ABOUTBAITOU,INSITUUTURN,SETUPXIEQIAO,CURVE

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